Brazilian police say a suspect has confessed to killing British journalist Dom Phillips and indigenous expert Bruno Pereira.
Detective Eduardo Fontes said the suspect took investigators to a site where human remains were dug up.
Detective Fontes said police would work with Interpol to confirm the identity of the bodies.
He said “first suspect” had confessed and led police to the human remains, but the other suspect in custody had denied any role despite incriminating evidence. Police are investigating the involvement of a third person and further arrests are possible, he added.
Brazil’s justice minister Anderson Torres tweeted: “I have just been informed by the federal police that ‘human remains have been found at the place where there digging was being made.’ Those will be submitted to forensics.”
No further details were immediately available.
Colleagues of the missing Indigenous expert, Bruno Pereira, called a vigil outside the headquarters of the Brazilian government’s Indigenous affairs agency in Brasilia.
Pereira, 41, was on leave from the agency when he disappeared June 5 while traveling with Dom Phillips, 57, a British freelance journalist who has written for the Guardian and Washington Post.
Phillips was doing research for a book on the trip with Pereira, a former head of isolated and recently contacted tribes at federal indigenous affairs agency Funai.
They were last seen on their boat in a river near the entrance of the Javari Valley Indigenous Territory, which borders Peru and Colombia. That area has seen violent conflicts between fishermen, poachers and government agents.